Beta/alpha continuous air monitor

Details Beta/alpha continuous air monitor Beta/alpha continuous air monitor

1988-06-27

1989-12-19

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

250253, 25037002, G01T 124

Patent

active

048884855

ABSTRACT:
A single deep layer silicon detector in combination with a microcomputer, recording both alpha and beta activity and the energy of each pulse, distinguishing energy peaks using a novel curve fitting technique to reduce the natural alpha counts in the energy region where plutonium and other transuranic alpha emitters are present, and using a novel algorithm to strip out radon daughter contribution to actual beta counts.

REFERENCES:
patent: 3914602 (1975-10-01), Goldstein
patent: 4078178 (1978-03-01), Lowes
patent: 4262203 (1981-04-01), Overhoff
patent: 4295045 (1981-10-01), Minami
patent: 4400621 (1983-08-01), Kiefer et al.
patent: 4700067 (1987-10-01), Carossi et al.
J. Bigu and R. Raz, "Passive Radon/Thoron personal Dosimeter Using an Electrostatic Collector and a Diffused-Junction Detector," Review of Scientific Instruments, vol. 56, No. 1, (Jan. 1985), pp. 146-152 [.COPYRGT.1985 American Institute of Physics].

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